THE CORROSION OF THE TC3 60/45 STEEL IN ALKALINE ENVIRONMENT
EUGEN ROMAN, CORINA RADULESCU
The electrochemical behaviour of the TCz 60/45 steel in alkaline environment is influenced by the concentration of the solution (4-33%), the aeration, the temperature (20-800C) and the sensitizing of the through heating (8500C). The corrosion process is controlled by the dissolving rate of the film formed on the surface. The influence of the oxygen can be observed at a concentration of 4% NaOH, through a large difference between the potential recorded in the case of the aerated solution and the potential recorded in the case of the de-aerated solution. The increase of the temperature concentration, and the sensitizing of the steel determine corresponding increase of the rate of the anodic and cathodic processes.